Gas lighter



FIG. 1 is a front view of a gas lighter showing my new design;

FIG. 2 is a plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof; and

FIG. 6 is a perspective thereof. 

The ornamental design for a gas lighter, substantially as shown. 